A VERSATILE, ADJUSTABLE BACKPACK MADE IN PART WITH RECYCLED MATERIALS. No matter how you plan it, some days just feel like you're moving from one thing to another all in one breath. First of all, breathe. Secondly, make sure you have this adidas by Stella McCartney backpack. The stylish essential is full of tricks. Expandable details give extra storage to the side zip pockets, and adjustable straps securely carry your jacket or yoga mat without taking away space. All the things you need, all in one place. Made with a series of recycled materials, and at least 60% recycled content, this product represents just one of our solutions to help end plastic waste.